(PhysOrg.com) -- Scientists from the University of Toronto and the University of British Columbia have helped unveil the birthplaces of ancient stars using a two-tonne telescope carried by a balloon the size of a 33-storey ...
Astronomy
Apr 8, 2009
1
0
(PhysOrg.com) -- When cities turn off their lights for Earth Hour their occupants will get more than a warm and fuzzy green feeling, they will also see stars hundreds of trillions kilometres away lighting up a moonless night ...
Space Exploration
Mar 18, 2009
0
0
The bright, red star Betelgeuse in the constellation Orion has shown some unexpected behavior. In late 2019 and 2020 it became fainter than we had ever seen it—at least in records going back more than a century. Briefly ...
Astronomy
Jun 12, 2023
0
315
Researchers from the Instituto de Astrofísica de Canarias (Spain) and the University of Cambridge (UK) have detected lithium (Li) in the ancient star J0023+0307, a main-sequence extremely iron-poor dwarf star about 9,450 ...
Astronomy
Apr 18, 2019
0
22
The potential discovery of a planet orbiting Barnard's Star – the second closest stellar system to the sun – was announced by researchers today in Nature.
Astronomy
Nov 15, 2018
16
27
An ancient Egyptian papyrus, known as the Cairo Calendar, could be the oldest historical record of a star's brightness, providing a new perspective on the development of the Algol triple star system over thousands of years.
Archaeology
Nov 12, 2018
1
976
The Ancient Egyptian papyrus Cairo 86637 calendar is the oldest preserved historical document of naked eye observations of a variable star, the eclipsing binary Algol - a manifestation of Horus, a god and a king. This calendar ...
Space Exploration
Dec 17, 2015
0
1344
Anna Frebel has unearthed some of the oldest stars in the universe, meticulously extricating them from the billions of stellar grains in the sky. By determining the chemical composition of these ancient stars, she hopes to ...
Astronomy
Dec 3, 2015
1
8
Ancient rocks embedded in the West Antarctic ice sheet could help University scientists improve sea level predictions.
Earth Sciences
Nov 14, 2011
0
2
(PhysOrg.com) -- Pushing the limits of its powerful vision, NASA's Hubble Space Telescope uncovered the oldest burned-out stars in our Milky Way Galaxy in this image from 2002. These extremely old, dim "clockwork stars" provide ...
Astronomy
Nov 3, 2011
2
0
